I have been wondering about Rimuru's ability "Traveler". Aren't we shortselling it here? Time is the "4th dimension", right? then what happens if the very concept of that dimension disappears? The timeaxis of the 3D space no longer exists then, of course. Yet Rimuru is able to move through time via Traveler anyway despite the time axis itself no longer existing. He was timetraveling in such a way that the concept of time itself was affected by it, meaning Rimuru's Traveler should be on a higher level than (4th dimension) time itself.
To illustrate what I mean:
Regular time travel in Slimeverse presumably works like so: Someone "rides" on the concept of time (here: Spirit of Time) to the past and as a result everything under its effects reverts back to what it was in the "past", but the Spirit of Time itself and the timetraveler do not. They are basically moving on a 4 dimensional axis and one could argue that the Spirit of Time is by definition a
Higher-Dimensional Existence (extrapolated from the fact that any Time or Space-Time abilities are 4D by default according to CP, so it makes no sense for that rule not to apply to the very concept of time itself).
But everything existing within the concept of time is what is holding it together. We know that once it's gone, "the world" ceases to function and the side-stories even imply that universes basically collapse and "return to 0" from that, which matches up with what I will mention next.
Now for the next part I need some help because I am not sure if I understood the facts of the matter entirely.
When Rimuru got BFRd to the "end of space-time", due to no further elaboration was basically ejected into the "2-A void", an infinite 4D space that contains all the Universes and Muliverses according to VS Battle presumptions about Tier 2, correct so far?
The 4 dimensions are all presumed to be "Spatial" and the 4th dimension only functions as time within the "bubbles" of 4D space, which are Universes and/or Multiverses, which matches with the bubbles made of only 3D space requiring a 4th axis in form of time to be able to exist within the 2-A void, any errors up to this point?
Now, finally the whole "infinite 2-A void", got it's OWN timeaxis which is the 5th dimension and being able to affect that is the High 2-A level, correct?
I think you can see where I am going with this. Regular timetravel that uses 4 dimensions, as I just explained, can't affect any effectively 4 dimensional existences that are the foundation of timetravel itself, since that's like carrying a box from the inside - it's fundamentally impossible. Yet Rimuru was able to reverse the "death" of time itself - meaning his "timetravel" wasn't 4 dimensional - it was 5 dimensional.
TL;DR I think Rimuru's Traveler should be considered High 2-A (5D) and I also think that it should also affect his Teleportation/Movement/Space/Time hax. and by extension Yuuki's BFR gets upgraded in some way, since it fundamentally prevents 4 dimensional timetravel by ejecting someone beyond the concept of time, making a return via 4D timetravel effectively impossible.
Well, if just one presumption I made was wrong, the entire idea probably collapses, but I think it was worth a shot to bring this up as a general idea at least.